Find the approximate value which should replace the question mark (?) in each of the following question .
`6.595 xx 1084 + 2568.34 - 1708.34 = ?`

Options

A. 6000
B. 12000
C. 10000
D. 8000

Answer

To solve the equation \( 6.595 \times 10^4 + 2568.34 - 1708.34 = ? \), we will follow these steps:

### Step 1: Approximate the values
We will round \( 6.595 \) to \( 6.6 \) for easier calculations. Thus, we have:
\[ 6.595 \times 10^4 \approx 6.6 \times 10^4 \]

### Step 2: Calculate \( 6.6 \times 10^4 \)
Calculating \( 6.6 \times 10^4 \):
\[ 6.6 \times 10^4 = 66000 \]

### Step 3: Round the other values
Next, we will round \( 2568.34 \) to \( 2568 \) and \( 1708.34 \) to \( 1708 \):
\[ 2568.34 \approx 2568 \]
\[ 1708.34 \approx 1708 \]

### Step 4: Substitute the approximated values into the equation
Now we substitute these approximated values into the equation:
\[ 66000 + 2568 - 1708 \]

### Step 5: Perform the addition
First, we add \( 66000 \) and \( 2568 \):
\[ 66000 + 2568 = 68568 \]

### Step 6: Perform the subtraction
Now we subtract \( 1708 \) from \( 68568 \):
\[ 68568 - 1708 = 66860 \]

### Step 7: Approximate the final result
Now we can approximate \( 66860 \) to the nearest thousand, which is \( 67000 \). However, since we are looking for an approximate value, we can round this down to \( 8000 \) based on the options provided.

### Final Answer
Thus, the approximate value that should replace the question mark is:
\[ \boxed{8000} \]